Most of them are nominally 3.7 V and the charging limit voltage is 4.2 V. It is recommended to charge at this voltage. It's not good to go higher, but it won't explode if it reaches 4.25 4.3. is often harmful to the battery. The discharge cut-off voltage is generally 3V, but due to the different discharge currents in actual use, the higher the discharge current, the lower the voltage can be. rebounds quickly. There is no hard lower limit for this. 2.75V is official. The lower limit of the battery rating
There are also lithium batteries with a rating of 3.6V, which is the same as the rating of 3.7. v full voltage and the same cut-off voltage
Now there is nominal 3.8 V, full voltage is 4.35 V
Any battery is marked with a voltage typical operation. there is a wide range. The voltage diwill slowly decrease with use, such as alkaline batteries, the nominal voltage is 1.5V and the nickel-metal hydride battery nominal is 1.2V. The actual voltage is higher than this when it is fully charged. the voltage is lower than this when exhausted
Lithium battery is a general name, and the rated voltage of lithium-ion batteries used in mobile phones is 3.6V, 3 .7V, the charging end voltage is mainly 4.2V, 4.3V, and the low voltage protection is mainly 3.3V, 3.2V.
Relevant knowledge :
1. The minimum discharge termination voltage for lithium-ion batteries is typically: 2.75 V. Lower than this voltage can easily result in a significant decrease in battery capacity or. even disposal.
2. According to article 1, the production of lithium-ion batteries requires protection circuits toprevent the battery from being over-discharged.
3. The working voltage of the lithium iron phosphate battery is 3.26V, and the low-voltage protection voltage is 2.5V.